Surgery Which of the following mechanism CANNOT prevent gastroesophageal reflux? A Looping fibres of right crus of diaphragm B Mucosal folds at gastroesophageal junction C Circular muscle fibres of GE sphincter D Angle made by the esophagus with stomach 💡 Explanation Which of the following mechanism CANNOT prevent gastroesophageal reflux? ✓ Correct Answer: C. Circular muscle fibres of GE sphincter